#include "ball.h"
#include <QMainWindow>

const double P=sqrt(2.0);    //半径
const int Ball::Colors[]={Qt::green,Qt::blue,Qt::yellow,Qt::darkGray,Qt::darkRed,
          Qt::lightGray,Qt::darkCyan,Qt::darkYellow,Qt::darkMagenta,Qt::darkGreen};
void Ball::initball(int type1)
{
    type=type1;
    size=(int)(8*pow(P,type1));
    mass=(int)(pow(1.5,type1));
    color=Colors[type1];
    vx=vy=ax=ay=0;  //初始速度、加速度为0
    falling=0;
}
